The House Intelligence Committee continues public hearings in President Trumps impeachment inquiry. Starting at 9 a.m. Tuesday, Jennifer Williams and Lt. Col. Alexander Vindman testify. By about 2:30 p.m., Amb. Kurt Volker and Tim Morrison will testify. Read more: What to watch on Day 3 of public Trump impeachment hearingsWatch live NBC News coverage here:

But the subsequent effort to lock down the rough transcript suggests some people in the White House viewed the president's conversation as problematic. Ellis, the other White House lawyer being asked to testify, was with Eisenberg when he made the suggestion to move the document into the more secure server. Ellis is no stranger to White House controversies. Eisenberg and Ellis, both part of the White House legal staff, declined to comment through an NSC spokesman. According to one of the individuals familiar with the White House classified computer systems, Eisenberg couldn't have actually moved it to N.I.C.E.

The whistleblower's identity is legally protected. But conservative allies of President Donald Trump are trying to unmask the intelligence community official whose complaint served as the catalyst for Democrat-led impeachment probe. Kentucky Sen. Rand Paul, a staunch Trump defender, tweeted out a link to a report about the whistleblower's identity. The fight over the whistleblower's identity is likely to accelerate as Democrats prepare to move forward with public impeachment hearings. And while Trump acknowledged whistleblowers should be protected, he added the caveat "if the whistleblower is legitimate."

Morrison had been featured prominently in previous testimony from Taylor, the top diplomat in Ukraine who testified before House investigators last week. It was Morrison who first alerted Taylor to concerns over Trump's phone call with the Ukraine president. Morrison testified Thursday that he initially knew so little about Burisma when he took over for Hill in July that he had to do a Google search but quickly understood the Biden connection. As the security funds for Ukraine were being withheld, Morrison told the diplomat, "President doesn't want to provide any assistance at all." Morrison told Bolton and the NSC lawyers of this call between Trump and Sondland, according to Taylor's testimony.

President Donald Trump speaks during a Medal of Honor Ceremony for U.S. Army Master Sgt. The impeachment inquiry is focused on Trump's effort to have Ukraine investigate Democrats___7:45 a.m.A former top national security adviser to President Donald Trump has arrived on Capitol Hill to testify in the House impeachment inquiry. Tim Morrison handled Russian and European affairs at the White House's National Security Council before resigning his position a day before Thursday's hearing. __12:10 a.m.House investigators expect to hear from the man who until recently was President Donald Trump's top adviser for Russian and European affairs. Tim Morrison had been with the National Security Council until leaving his post the day before his scheduled testimony in the House impeachment inquiry.

Trump ousted Bolton as national security adviser in September. A senior administration official says Tim Morrison, a National Security Council official, "has decided to pursue other opportunities." They have also asked two current staffers on the National Security Council, Michael Ellis and lawyer John Eisenberg, to testify Nov. 4. The Army officer who reported his concerns over President Donald Trump's phone call with Ukraine's president is willing to testify publicly in the impeachment inquiry. Christopher Anderson and Catherine Croft, another foreign service officer, are set to testify Wednesday in the House impeachment inquiry.

Scott Applewhite)WASHINGTON, DC For only the fourth time in U.S. history, the House of Representatives has started a presidential impeachment inquiry. A quick summary of the latest news:WHAT YOU NEED TO KNOW House investigators are summoning former national security adviser John Bolton to testify in their impeachment inquiry. __WHAT'S NEXT Tim Morrison, Trump's top adviser for Russian and European affairs, is scheduled to testify Thursday before the House impeachment investigators. House Democrats are pushing toward their first formal vote on impeachment Thursday. If the House were to impeach Trump, 67 senators would need to vote "guilty" on any count to convict and remove him from office.